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Dynamics of Langmuir Supercells in t...

Teixeira Gomes de Melo, Yargo.

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Dynamics of Langmuir Supercells in the Coastal Ocean.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Dynamics of Langmuir Supercells in the Coastal Ocean./
作者:	Teixeira Gomes de Melo, Yargo.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	169 p.
附註:	Source: Dissertations Abstracts International, Volume: 84-12, Section: B.
Contained By:	Dissertations Abstracts International84-12B.
標題:	Fluid mechanics. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30421327
ISBN:	9798379691387

Dynamics of Langmuir Supercells in the Coastal Ocean.
Teixeira Gomes de Melo, Yargo.

Dynamics of Langmuir Supercells in the Coastal Ocean. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 169 p.

Source: Dissertations Abstracts International, Volume: 84-12, Section: B.

Thesis (Ph.D.)--University of Georgia, 2023.

Langmuir circulations (LC) are phenomena that impact the mixing and transport of gases, heat, and momentum in the uppermost layer of the ocean. They appear as pairs of counterrotating vortices on the ocean surface, parallel to the direction of the wind. Recent studies have shown that in the coastal ocean, LC can extend through the entire water column under strong wind-wave conditions, forming Langmuir Supercells (LSC). LSCs drive significant mixing and transport not only in the surface layer of the ocean, but also in the bottom boundary layer, where wave mobilized sediments can be carried upwards. By analyzing velocity profiles and meteorological auxiliary data at different sites, researchers can better understand the dynamics and impact of LSC. This dissertation examines Langmuir Supercells to understand their behavior under different forcing conditions, how to evaluate them, and their structural organization at varying depths, including full parametrization and analysis of the deepest recorded LSC event to date. Herein I 1) propose a novel method of separation of waves and turbulence using rotary spectra analysis, 2) demonstrate existence of LSC events in a 40 m depth site while providing full parametrization, 3) propose a novel method to estimate heat flux sans pyranometry, and 4) examine and apply current methods to estimate organization of LSC to study effects of organization of LSC at varying depths.

ISBN: 9798379691387Subjects--Topical Terms:

528155
Fluid mechanics.
Subjects--Index Terms:

ADCP

Dynamics of Langmuir Supercells in the Coastal Ocean.
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245 1 0 $a Dynamics of Langmuir Supercells in the Coastal Ocean.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 169 p.
500 $a Source: Dissertations Abstracts International, Volume: 84-12, Section: B.
500 $a Advisor: Woodson, C. Brock;Savidge, Dana K.
502 $a Thesis (Ph.D.)--University of Georgia, 2023.
520 $a Langmuir circulations (LC) are phenomena that impact the mixing and transport of gases, heat, and momentum in the uppermost layer of the ocean. They appear as pairs of counterrotating vortices on the ocean surface, parallel to the direction of the wind. Recent studies have shown that in the coastal ocean, LC can extend through the entire water column under strong wind-wave conditions, forming Langmuir Supercells (LSC). LSCs drive significant mixing and transport not only in the surface layer of the ocean, but also in the bottom boundary layer, where wave mobilized sediments can be carried upwards. By analyzing velocity profiles and meteorological auxiliary data at different sites, researchers can better understand the dynamics and impact of LSC. This dissertation examines Langmuir Supercells to understand their behavior under different forcing conditions, how to evaluate them, and their structural organization at varying depths, including full parametrization and analysis of the deepest recorded LSC event to date. Herein I 1) propose a novel method of separation of waves and turbulence using rotary spectra analysis, 2) demonstrate existence of LSC events in a 40 m depth site while providing full parametrization, 3) propose a novel method to estimate heat flux sans pyranometry, and 4) examine and apply current methods to estimate organization of LSC to study effects of organization of LSC at varying depths.
590 $a School code: 0077.
650 4 $a Fluid mechanics. $3 528155
650 4 $a Ocean engineering. $3 660731
650 4 $a Environmental science. $3 677245
653 $a ADCP
653 $a Coastal oceanography
653 $a Langmuir circulation
653 $a Turbulence
653 $a Wind stress
690 $a 0204
690 $a 0547
690 $a 0768
710 2 $a University of Georgia. $b Engineering - PHD. $3 3560275
773 0 $t Dissertations Abstracts International $g 84-12B.
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792 $a 2023
793 $a English
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